Zeziphi iingcebiso eziphambili zokuthenga ii-AC alternators ezilungileyo

Okwangoku, ukunqongophala kombane kwihlabathi liphela kuya kusiba mandundu ngakumbi nangakumbi. Iinkampani ezininzi kunye nabantu ngabanye bakhetha ukuthenga iiseti zejenereyitha ukuze kuncitshiswe imida kwimveliso kunye nobomi obubangelwa kukungabikho kombane. I-AC alternator yenye yezona zinto zibalulekileyo kwiseti yejenereyitha yonke. Indlela yokukhetha ii-alternator ezinokuthenjwa, la macebiso alandelayo kufuneka aqatshelwe:

I. Iimpawu zombane:

1. Inkqubo yokuvuselela: Kule nqanaba, inkqubo yokuvuselela ye-AC alternator esemgangathweni ophezulu yi-self-excitation, edla ngokuxhotyiswa nge-automatic voltage regulator (AVR). Amandla okukhupha e-exciter rotor adluliselwa kwi-host rotor nge-rectifier. Izinga lokulungiswa kwe-voltage ye-steady-state ye-AVR ubukhulu becala yi-≤1%. Phakathi kwazo, i-AVR esemgangathweni ophezulu ikwanemisebenzi emininzi efana nokusebenza ngaxeshanye, ukhuseleko oluphantsi lwe-frequency, kunye nokulungiswa kwe-voltage yangaphandle.

2. Ukufakwa kwe-insulation kunye ne-varnish: Umgangatho wokufakwa kwe-insulation we-alternators ezikumgangatho ophezulu ngokubanzi yi-"H", kwaye zonke iindawo zayo ezijikelezayo zenziwe ngezinto ezenziwe ngokukodwa kwaye zifakwe inkqubo ekhethekileyo. I-alternator isebenza kwiindawo ezinzima ukubonelela ngokhuseleko.

3. Ukusebenza ngokujikajika kunye nokusebenza kombane: I-stator ye-alternator ekumgangatho ophezulu iya kugqunywa ngeepleyiti zentsimbi ezigoqwe ngokubandayo ezine-magnetic permeability ephezulu, ii-windings eziphindwe kabini, isakhiwo esomeleleyo kunye nokusebenza kakuhle kokugquma.

4. Ukuphazamiseka kwefowuni: I-THF (njengoko kuchaziwe yi-BS EN 600 34-1) ingaphantsi kwe-2%. I-TIF (njengoko ichaziwe yi-NEMA MG1-22) ingaphantsi kwe-50

5. Ukuphazamiseka kwerediyo: Izixhobo ezingenamabhrashi ezisemgangathweni ophezulu kunye ne-AVR ziya kuqinisekisa ukuba akukho kuphazamiseka kuncinci ngexesha lokusasazwa kwerediyo. Ukuba kuyimfuneko, isixhobo esongezelelweyo sokunciphisa i-RFI singafakwa.

II. Iimpawu zoomatshini:

Inqanaba lokhuseleko: Iintlobo eziqhelekileyo zazo zonke iijenereyitha ze-AC zomhlaba yi-IP21, IP22 kunye ne-IP23 (NEMA1). Ukuba kukho imfuneko yokhuseleko ephezulu, ungakhetha ukuphucula inqanaba lokhuseleko le-IP23. Uhlobo oluqhelekileyo lwejenereyitha ye-AC yaselwandle yi-IP23, IP44, IP54. Ukuba ufuna ukuphucula inqanaba lokhuseleko, njengokuba okusingqongileyo kuselunxwemeni lolwandle, ungaxhobisa ijenereyitha ye-AC ngezinye izixhobo, ezifana nezifudumezi zesithuba, izihluzi zomoya, njl.njl.

Ukunqongophala kwamandla kwihlabathi liphela kukonyuse kakhulu ukuthengiswa kwe-AC alternator/generators. Amaxabiso ezixhobo ze-AC generator ezifana nee-disc couplings kunye nee-rotors anyukile kuyo yonke indawo. Umbane uncinci. Ukuba ufuna umbane, ungathenga ii-AC generators ngokukhawuleza. Ixabiso lee-AC generators nalo lihlala linyuka!